Comparison between:
- Samsung Galaxy A7 (2018)
- Samsung Galaxy A8 Star
- Samsung Galaxy A8+ (2018)
- Samsung Galaxy A9 (2018)

Brand and model

Information about the brand, model and model alias (if any) of a specific device.

Samsung Galaxy A7 (2018)Samsung Galaxy A8 StarSamsung Galaxy A8+ (2018)Samsung Galaxy A9 (2018)
Samsung Galaxy A7 (2018)
Prices
Samsung Galaxy A8 Star
Prices
Samsung Galaxy A8+ (2018)Samsung Galaxy A9 (2018)
Prices
Model aliasSM-A750F
A750F
SM-G8850Z
G8850Z
SM-A730F
A730F
SM-A920F
A920F

Design

Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.

Width76.8 mm
7.68 cm
0.252 ft
3.024 in
77 mm
7.7 cm
0.253 ft
3.031 in
75.7 mm
7.57 cm
0.248 ft
2.98 in
77 mm
7.7 cm
0.253 ft
3.031 in
Height159.8 mm
15.98 cm
0.524 ft
6.291 in
162.4 mm
16.24 cm
0.533 ft
6.394 in
159.9 mm
15.99 cm
0.525 ft
6.295 in
162.5 mm
16.25 cm
0.533 ft
6.398 in
Thickness7.5 mm
0.75 cm
0.025 ft
0.295 in
7.6 mm
0.76 cm
0.025 ft
0.299 in
8.3 mm
0.83 cm
0.027 ft
0.327 in
7.8 mm
0.78 cm
0.026 ft
0.307 in
Weight168 g
0.37 lbs
5.93 oz
191 g
0.42 lbs
6.74 oz
191 g
0.42 lbs
6.74 oz
183 g
0.4 lbs
6.46 oz
Volume92.04 cm³
5.59 in³
95.04 cm³
5.77 in³
100.47 cm³
6.1 in³
97.6 cm³
5.93 in³
ColorsBlack
Blue
Gold
Pink
Black
White
Black
Blue
Gold
Gray
Black
Blue
Pink
Body materialsAluminium alloy
Glass
PolycarbonateAluminium alloy
Glass
Polycarbonate
Aluminium alloy
Certification--IP68-

SIM card

The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.

SIM card typeNano-SIMNano-SIM
Nano-SIM / microSD
Nano-SIMNano-SIM
Number of SIM cards1212
FeaturesDual SIM optional (A variant of the model with two SIM card slots is available)-Dual SIM optional (A variant of the model with two SIM card slots is available)Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)

Networks

A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.

GSMGSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
CDMA-CDMA 800 MHz-CDMA 800 MHz
TD-SCDMA-TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
--
UMTSUMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
LTELTE 700 MHz Class 17
LTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 700 MHz Class 17
LTE 850 MHz
LTE 900 MHz
LTE 1700/2100 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 700 MHz (B12)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 700 MHz Class 17
LTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1700/2100 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE 700 MHz (B12)
LTE 700 MHz (B28)
LTE 1700/2100 MHz (B66)
LTE 900 MHz
LTE 1700/2100 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)

Mobile network technologies and bandwidth

Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.

Mobile network technologiesUMTS
EDGE
GPRS
HSPA+
LTE Cat 6
UMTS
EDGE
GPRS
HSPA+
LTE Cat 12
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 11
UMTS
EDGE
GPRS
HSPA+
LTE Cat 9
EV-DO Rev. A

Operating system

Operating system is the system software, which manages and controls the functioning of the hardware components of the device.

Operating system (OS)Android 8.0 Oreo
Android 9.0 Pie
Android 8.0 OreoAndroid 7.1.1 Nougat
Android 8.0 Oreo
Android 9.0 Pie
Android 8.0 Oreo
Android 9.0 Pie
User interface (UI)OneExperience 9.0-Experience 9.0

System on Chip (SoC)

A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.

SoCSamsung Exynos 7 Octa 7885Qualcomm Snapdragon 660 MSM8976 PlusSamsung Exynos 7 Octa 7885Qualcomm Snapdragon 660 MSM8976 Plus
Process technology14 nm14 nm14 nm14 nm
CPU2x 2.2 GHz ARM Cortex-A73, 6x 1.6 GHz ARM Cortex-A534x 2.2 GHz Kryo 260, 4x 1.84 GHz Kryo 2602x 2.2 GHz ARM Cortex-A73, 6x 1.6 GHz ARM Cortex-A534x 2.2 GHz Kryo 260, 4x 1.84 GHz Kryo 260
CPU bits64 bit64 bit64 bit64 bit
Instruction setARMv8-AARMv8ARMv8-AARMv8
CPU cores8888
CPU frequency2200 MHz2200 MHz2200 MHz2200 MHz
GPUARM Mali-G71Qualcomm Adreno 512ARM Mali-G71Qualcomm Adreno 512
RAM capacity4 GB
6 GB
4 GB4 GB
6 GB
6 GB
8 GB
RAM typeLPDDR4LPDDR4XLPDDR4LPDDR4X
RAM channels-Double channel-Double channel
RAM frequency-1866 MHz-1866 MHz

Storage

Every mobile device has a built-in storage (internal memory) with a fixed capacity.

Storage64 GB
128 GB
64 GB32 GB
64 GB
128 GB

Memory cards

Memory cards are used in mobile devices for expanding their external storage capacity.

TypesmicroSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC

Display

The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.

Type/technologySuper AMOLEDSuper AMOLEDSuper AMOLEDSuper AMOLED
Diagonal size6 in
152.4 mm
15.24 cm
6.3 in
160.02 mm
16 cm
6 in
152.4 mm
15.24 cm
6.3 in
160.02 mm
16 cm
Width2.62 in
66.67 mm
6.67 cm
2.76 in
70 mm
7 cm
2.62 in
66.67 mm
6.67 cm
2.76 in
70 mm
7 cm
Height5.4 in
137.04 mm
13.7 cm
5.67 in
143.9 mm
14.39 cm
5.4 in
137.04 mm
13.7 cm
5.67 in
143.9 mm
14.39 cm
Aspect ratio2.056:12.056:12.056:12.056:1
Resolution1080 x 2220 pixels1080 x 2220 pixels1080 x 2220 pixels1080 x 2220 pixels
Pixel density411 ppi
161 ppcm
392 ppi
154 ppcm
411 ppi
161 ppcm
392 ppi
154 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area74.69 %80.81 %75.73 %80.76 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Corning Gorilla Glass 32.5D curved glass screenCorning Gorilla Glass 4
Always-On Display
2.5D curved glass screen
Always-On Display
400 cd/m²

Sensors

Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.

SensorsProximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Hall
Proximity
Light
Accelerometer
Compass
Gyroscope
Barometer
Fingerprint
Proximity
Light
Accelerometer
Compass
Gyroscope
Barometer
Fingerprint
Hall
Proximity
Light
Accelerometer
Compass
Gyroscope
Barometer
Fingerprint
Hall

Rear camera

The primary camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.

Sensor model--Samsung S5K2P6SX-
Sensor typeCMOSCMOSISOCELLCMOS
Sensor format--1/2.8"-
Pixel size--1.12 µm
0.001120 mm
-
ISO---100 - 800
Aperturef/1.7f/1.7f/1.7f/1.7
Focal length and 35 mm equivalent3.93 mm
27 mm *(35 mm / full frame)
-3.93 mm
26 mm *(35 mm / full frame)
3.93 mm
27 mm *(35 mm / full frame)
Flash typeLEDLEDLEDLED
Image resolution5664 x 4248 pixels
24.06 MP
4608 x 3456 pixels
15.93 MP
4608 x 3456 pixels
15.93 MP
5664 x 4248 pixels
24.06 MP
Video resolution1920 x 1080 pixels
2.07 MP
3840 x 2160 pixels
8.29 MP
1920 x 1080 pixels
2.07 MP
3840 x 2160 pixels
8.29 MP
Video FPS30 fps30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Phase detection autofocus (PDAF)
Autofocus
Continuous shooting
Digital zoom
Optical image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Autofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Autofocus
Continuous shooting
Digital zoom
Optical image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Secondary rear camera - 8 MP (ultra-wide angle)
Aperture size - f/2.4 (#2)
Focal length (35 mm equivalent) - 18 mm (#2)
Angle of view - 120° (#2)
Third rear camera - 5 MP
Aperture size - f/2.2 (#3)
Secondary rear camera - 24 MP
Aperture size - f/1.7 (#2)
-Secondary rear camera - 10 MP (telephoto)
Aperture size - f/2.4 (#2)
Third rear camera - 8 MP (ultra-wide angle)
Aperture size - f/2.4 (#3)
Angle of view - 120° (#3)
Fourth rear camera - 5 MP
Aperture size - f/2.2 (#4)

Front camera

Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc.

Sensor model--Samsung S5K3P8SP-
Sensor typeCMOS-ISOCELL-
Sensor format--1/3.1"-
Pixel size--1 µm
0.001000 mm
-
Aperturef/2f/2f/1.9f/2
Focal length and 35 mm equivalent3.89 mm
26 mm *(35 mm / full frame)
-3.6 mm
26 mm *(35 mm / full frame)
3.89 mm
26 mm *(35 mm / full frame)
Image resolution5664 x 4248 pixels
24.06 MP
5632 x 4224 pixels
23.79 MP
4608 x 3456 pixels
15.93 MP
5664 x 4248 pixels
24.06 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps30 fps
FeaturesFace unlock-Face unlock-
--Sensor size - 1/4" (#2)
Pixel size - 1.12 μm (#2)
Aperture size - f/1.8 (#2)
Angle of view - 85° (#2)
Secondary front camera - 8 MP
-

Audio

Information about the type of speakers and the audio technologies supported by the device.

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
-Dolby Atmos-Dolby Atmos

Radio

The radio in a mobile device is a built-in FM radio receiver.

RadioYesYesYesYes

Tracking/Positioning

Information about the positioning and navigation technologies supported by the device.

Tracking/PositioningGPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GLONASS
BeiDou
Galileo

Wi-Fi

Wi-Fi is a technology that provides wireless data connections between various devices within a short range.

Wi-Fi802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
---VHT80 MU-MiMO

Bluetooth

Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.

Version5.05.05.05.0
FeaturesA2DP
AVRCP
DIP
HFP
HID
HSP
MAP
OPP
PAN
PBAP
HOGP
A2DP
AVRCP
DIP
HFP
HID
HSP
MAP
OPP
PAN
PBAP
HOGP
A2DP
AVRCP
DIP
HFP
HID
HSP
MAP
OPP
PAN
PBAP
HOGP
A2DP
AVRCP
DIP
HFP
HID
HSP
MAP
OPP
PAN
PBAP
HOGP

USB

The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.

Connector typeMicro USBUSB Type-CUSB Type-CUSB Type-C
Version2.02.02.02.0
FeaturesCharging
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go

Headphone jack

The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.

Headphone jackYesYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
NFC
ANT+
Computer sync
OTA sync
Tethering
NFC
ANT+
Computer sync
OTA sync
Tethering
NFC
ANT+
Computer sync
OTA sync
Tethering
NFC
ANT+
NFC - market dependent---

Browser

A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.

BrowserHTML
HTML5
CSS 3
HTML
HTML5
CSS 3
HTML
HTML5
CSS 3
HTML
HTML5
CSS 3

Audio file formats/codecs

Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.

Audio file formats/codecsAAC
AMR
AMR-WB
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
AMR-WB
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
aptX
aptX HD
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV

Video file formats/codecs

Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.

Video file formats/codecs3GPP
3GPP2
AVI
Flash Video
H.263
H.264
H.265
MKV
MP4
VC-1
VP8
VP9
WebM
WMV
WMV7
WMV8
Xvid
3GPP
3GPP2
AVI
Flash Video
MKV
MP4
WebM
WMV
3GPP
3GPP2
AVI
Flash Video
H.263
H.264
H.265
MKV
MP4
VC-1
VP8
VP9
WebM
WMV
WMV7
WMV8
Xvid
3GPP
3GPP2
AVI
Flash Video
MKV
MP4
WebM
WMV

Battery

The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.

Capacity3300 mAh3700 mAh3500 mAh3800 mAh
TypeLi-IonLi-IonLi-IonLi-Polymer
Charger output power5 V / 1.55 A-5 V / 2 A
9 V / 1.67 A
-
FeaturesNon-removableFast charging
Non-removable
Fast charging
Non-removable
Fast charging
Non-removable

Specific Absorption Rate (SAR)

The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg.

Head SAR (EU)0.335 W/kg--0.351 W/kg
Body SAR (EU)1.425 W/kg--1.587 W/kg
Head SAR (USA)0.62 W/kg-0.2 W/kg0.27 W/kg
Body SAR (USA)0.467 W/kg-0.75 W/kg0.84 W/kg
 Samsung Galaxy A7 (2018)Samsung Galaxy A8 StarSamsung Galaxy A8+ (2018)Samsung Galaxy A9 (2018)